| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '279') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Class is '279';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1875 | ||||||
| U | 170,377 | November 23, 1875 | Improvement in Lightning Rods Coupling for hollow lightning rods composed of a hollow indented plug that fits into indentions in the rod ends |
JOHNSON, Isaac |
Lightning Rod Coupling | |
| 1876 | ||||||
| U | 173,962 | February 22, 1876 | Improvement in Couplings for Tubing and Lightning Rods Coupling made of a short hollow piece placed inside both ends of the rod and crimped down through the rod ends to secure the sections |
JOHNSON, Isaac |
Lightning Rod Coupling | Reyburn, Hunter & Co. |
| U | 176,769 | May 2, 1876 | Improvement in Lightning Rod Couplings Lightning rod connector made of solid metal fitting snugly inside each end of the tubular rod and secured with pins |
BRADLEY, Sylvester |
Lightning Rod Coupling | |
| 1884 | ||||||
| U | 305,140 | September 16, 1884 | Lightning Rod Coupling Coupling for tubular lightning rods |
BRADLEY, Sylvester |
Lightning Rod Coupling | |
| 1889 | ||||||
| U | 406,681 | July 9, 1889 | Lightning Rod Coupling with flat resilent spring between the sections |
WATTS, John Henry Charles |
Lightning Rod Coupling | |
| 1903 | ||||||
| U | 735,429 | August 4, 1903 | Insulator Machine Plunger for press |
WATERS, James |
Plunger | |
| 1927 | ||||||
| U | 1,625,266 | April 19, 1927 | Rod Coupling Lightning rod made solid with parallel fins and connected by coupling with matching male and female threads crimped over the ends of the rod sections |
MAST, Charles O. |
Lightning Rod Coupling | Mast Lightning Rod Co. |
| 1941 | ||||||
| U | 2,257,675 | September 30, 1941 | Plunger Screw-Out Chuck Insulator threading mandrel removal machine |
EASTUS, Harold L. |
Press; OI | Owens-Illinois Glass Co. |
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